Analysis
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max time kernel
1800s -
max time network
1583s -
platform
windows10-1703_x64 -
resource
win10-20230703-en -
resource tags
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submitted
27-07-2023 23:32
General
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Target
2.exe
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Size
221KB
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MD5
8a62691e9921ee88ab036aba6f9e45eb
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SHA1
288d8268254bf799aef8db58beb18cb35fd903a1
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SHA256
a31a45f1c686c1ae2ff1733e7e7636a17010b85091b17bdf68c27543866dfca5
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SHA512
75939ee7257ff3a327f89d88612462b31058bb1e09888d055379e77bb2e9c7d7282ba4edfc0e875298318d2bc1fc63741fd8f5e2697855173cf822619ac67a44
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SSDEEP
3072:jr80jG3/pNoCOTkEY6ARea8TPUwlCIRSrYIv2FSlSDhkE64Jww6+C3Ul:80jWsCOTkE6v8Ti9slF9JwwR
Malware Config
Extracted
C:\info.hta
class='mark'>[email protected]</span></div>
http://www.w3.org/TR/html4/strict.dtd'>
Extracted
C:\users\public\desktop\info.hta
Signatures
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Phobos
Phobos ransomware appeared at the beginning of 2019.
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Deletes shadow copies 2 TTPs
Ransomware often targets backup files to inhibit system recovery.
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Modifies boot configuration data using bcdedit 1 TTPs 4 IoCs
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Renames multiple (447) files with added filename extension
This suggests ransomware activity of encrypting all the files on the system.
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Deletes backup catalog 3 TTPs 2 IoCs
Uses wbadmin.exe to inhibit system recovery.
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Modifies Windows Firewall 1 TTPs 2 IoCs
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Drops startup file 3 IoCs
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Reads user/profile data of web browsers 2 TTPs
Infostealers often target stored browser data, which can include saved credentials etc.
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Adds Run key to start application 2 TTPs 2 IoCs
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Drops desktop.ini file(s) 64 IoCs
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Drops file in Program Files directory 64 IoCs
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Enumerates physical storage devices 1 TTPs
Attempts to interact with connected storage/optical drive(s).
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Checks SCSI registry key(s) 3 TTPs 4 IoCs
SCSI information is often read in order to detect sandboxing environments.
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Interacts with shadow copies 2 TTPs 2 IoCs
Shadow copies are often targeted by ransomware to inhibit system recovery.
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Modifies registry class 1 IoCs
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Suspicious behavior: EnumeratesProcesses 64 IoCs
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Suspicious use of AdjustPrivilegeToken 64 IoCs
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Suspicious use of WriteProcessMemory 42 IoCs
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Uses Task Scheduler COM API 1 TTPs
The Task Scheduler COM API can be used to schedule applications to run on boot or at set times.
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Uses Volume Shadow Copy service COM API
The Volume Shadow Copy service is used to manage backups/snapshots.
Processes
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C:\Users\Admin\AppData\Local\Temp\2.exe"C:\Users\Admin\AppData\Local\Temp\2.exe"1⤵
- Drops startup file
- Adds Run key to start application
- Drops desktop.ini file(s)
- Drops file in Program Files directory
- Modifies registry class
- Suspicious behavior: EnumeratesProcesses
- Suspicious use of AdjustPrivilegeToken
- Suspicious use of WriteProcessMemory
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C:\Users\Admin\AppData\Local\Temp\2.exe"C:\Users\Admin\AppData\Local\Temp\2.exe"2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\netsh.exenetsh advfirewall set currentprofile state off3⤵
- Modifies Windows Firewall
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C:\Windows\system32\netsh.exenetsh firewall set opmode mode=disable3⤵
- Modifies Windows Firewall
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\Users\Admin\Desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\users\public\desktop\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "C:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\SysWOW64\mshta.exe"C:\Windows\SysWOW64\mshta.exe" "F:\info.hta" {1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}{1E460BD7-F1C3-4B2E-88BF-4E770A288AF5}2⤵
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C:\Windows\system32\cmd.exe"C:\Windows\system32\cmd.exe"2⤵
- Suspicious use of WriteProcessMemory
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C:\Windows\system32\vssadmin.exevssadmin delete shadows /all /quiet3⤵
- Interacts with shadow copies
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C:\Windows\System32\Wbem\WMIC.exewmic shadowcopy delete3⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\bcdedit.exebcdedit /set {default} bootstatuspolicy ignoreallfailures3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\bcdedit.exebcdedit /set {default} recoveryenabled no3⤵
- Modifies boot configuration data using bcdedit
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C:\Windows\system32\wbadmin.exewbadmin delete catalog -quiet3⤵
- Deletes backup catalog
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C:\Windows\system32\vssvc.exeC:\Windows\system32\vssvc.exe1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\system32\wbengine.exe"C:\Windows\system32\wbengine.exe"1⤵
- Suspicious use of AdjustPrivilegeToken
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C:\Windows\System32\vdsldr.exeC:\Windows\System32\vdsldr.exe -Embedding1⤵
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C:\Windows\System32\vds.exeC:\Windows\System32\vds.exe1⤵
- Checks SCSI registry key(s)
Network
MITRE ATT&CK Enterprise v15
Persistence
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Privilege Escalation
Boot or Logon Autostart Execution
1Registry Run Keys / Startup Folder
1Create or Modify System Process
1Windows Service
1Replay Monitor
Loading Replay Monitor...
Downloads
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Filesize
2.9MB
MD56ae3f579285489b29379e2c5148ec4f5
SHA1030d84b6de15a9ce520ee891ec181ea18a475ba8
SHA2564f3250666a6aa304d4bd7d4088d693b13b7fc5ef5c4e7422c175658540272c86
SHA51217943a93008a5ec9a9a58407b757c4842aa346d198b0040ec9c8bf1f799a4cc9868dc644452a2785403f4c137501ed917e2801903dcec3168013b3e8c75a6231
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Filesize
5KB
MD5ac056f34854ad2d2507139f7bf209462
SHA16d6a6d6723a55431dad1560a94352cdaef3a7186
SHA2569c69518367e2a1df8dc8f4a9779ee8429ddc64ecbea60251aaf57a999c59cbb7
SHA51223ed44e8ec0cb554deb75ead538d1234efa9778d10d61101739cc8c228a0893f7af2dd03472a0b1962baa9ec48303488d08f18ff806047145a92d8ffb606c0b8
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Filesize
5KB
MD5ac056f34854ad2d2507139f7bf209462
SHA16d6a6d6723a55431dad1560a94352cdaef3a7186
SHA2569c69518367e2a1df8dc8f4a9779ee8429ddc64ecbea60251aaf57a999c59cbb7
SHA51223ed44e8ec0cb554deb75ead538d1234efa9778d10d61101739cc8c228a0893f7af2dd03472a0b1962baa9ec48303488d08f18ff806047145a92d8ffb606c0b8
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Filesize
5KB
MD5ac056f34854ad2d2507139f7bf209462
SHA16d6a6d6723a55431dad1560a94352cdaef3a7186
SHA2569c69518367e2a1df8dc8f4a9779ee8429ddc64ecbea60251aaf57a999c59cbb7
SHA51223ed44e8ec0cb554deb75ead538d1234efa9778d10d61101739cc8c228a0893f7af2dd03472a0b1962baa9ec48303488d08f18ff806047145a92d8ffb606c0b8
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Filesize
5KB
MD5ac056f34854ad2d2507139f7bf209462
SHA16d6a6d6723a55431dad1560a94352cdaef3a7186
SHA2569c69518367e2a1df8dc8f4a9779ee8429ddc64ecbea60251aaf57a999c59cbb7
SHA51223ed44e8ec0cb554deb75ead538d1234efa9778d10d61101739cc8c228a0893f7af2dd03472a0b1962baa9ec48303488d08f18ff806047145a92d8ffb606c0b8
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Filesize
5KB
MD5ac056f34854ad2d2507139f7bf209462
SHA16d6a6d6723a55431dad1560a94352cdaef3a7186
SHA2569c69518367e2a1df8dc8f4a9779ee8429ddc64ecbea60251aaf57a999c59cbb7
SHA51223ed44e8ec0cb554deb75ead538d1234efa9778d10d61101739cc8c228a0893f7af2dd03472a0b1962baa9ec48303488d08f18ff806047145a92d8ffb606c0b8
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Filesize
23.2MB
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Filesize
1024KB
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Filesize
1024KB
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Filesize
23.2MB
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Filesize
23.2MB
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Filesize
23.2MB
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Filesize
23.2MB
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Filesize
23.2MB
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Filesize
23.2MB
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Filesize
23.2MB
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Filesize
60KB
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Filesize
23.2MB
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Filesize
23.2MB
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Filesize
60KB
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Filesize
1024KB